@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

:root {
    --bg-primary: url("https://www.transparenttextures.com/patterns/gplay.png");
     background-color: #1d1d1d;
    --bg-secondary: linear-gradient(145deg, #4a4a4a 0%, #3a3a3a 100%);
    --bg-card: linear-gradient(145deg, #4a4a4a 0%, #3a3a3a 100%);
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --accent: #F92E2D;
    --accent-hover: #6c1515;
    --shadow: rgba(0, 0, 0, 0.5);
    --border: rgba(255, 255, 255, 0.1);
    --chart-grid-color: rgba(255, 255, 255, 0.2);
}

[data-theme="light"] {
    --bg-primary: url("https://www.transparenttextures.com/patterns/gplay.png");
    background-color: #f5f2f2;
    --bg-secondary: linear-gradient(145deg,  #f0f0f0 0%, #f0f0f0 100%);
    --bg-card: linear-gradient(145deg, #f0f0f0 0%, #f0f0f0 100%);
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --accent: #F92E2D;
    --accent-hover: #6b1515;
    --shadow: rgba(0, 0, 0, 0.1);
    --border: rgba(0, 0, 0, 0.1);
    --chart-grid-color: rgba(0, 0, 0, 0.5);
    }

* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    animation: fadeIn 1s ease-in;
    transition: background 0.3s ease, color 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

header {
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    box-shadow: 0 4px 20px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background 0.3s ease, color 0.3s ease;
}

header .logo {
    width: 200px;
}

nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 25px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    background-color: var(--accent);
    color: #fff;
}

.theme-toggle {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    transition: background-color 0.3s ease, transform 0.3s ease;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background-color: var(--accent-hover);
    transform: scale(1.1);
}

.theme-toggle:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.lang-toggle {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-toggle:hover {
    background-color: var(--accent-hover);
    transform: scale(1.05);
}

.lang-toggle:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    display: grid;
    gap: 40px;
}

.hero {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    animation: slideIn 1s ease-out;
    transition: background 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.hero h1 {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.hero p {
    font-size: 1.3em;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: 30px;
}

.chaines {
    position: relative;
    width: fit-content;
    left: 50%;
    transform: translateX(-50%);
    background:#4A4A4A ;
    padding: 10px;
    border-radius:25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}


i.fas:nth-child(5) {
padding-top: 10px;
}

    



[data-theme="light"] .chaines {
    background: #f0f0f0;
    border: 1px solid #ddd;
}

.chaines ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: 0;
    margin-top: 5px;
    gap: 10px;
}

.chaines li {
    list-style: none;
    flex: 0 0 calc(50% - 10px);
    display: flex;
    justify-content: center;
}

.chaines img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 5px;
    opacity: 0;
    animation: fadeInLogo 0.5s ease forwards;
    margin: 1.5px;
    margin-top: -4px;
}

.chaines li:nth-child(1) img { animation-delay: 0s; }
.chaines li:nth-child(2) img { animation-delay: 0.1s; }
.chaines li:nth-child(3) img { animation-delay: 0.2s; }
.chaines li:nth-child(4) img { animation-delay: 0.3s; }
.chaines li:nth-child(5) img { animation-delay: 0.4s; }
.chaines li:nth-child(6) img { animation-delay: 0.5s; }

@keyframes fadeInLogo {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.logos{
    width:20%
}

.stat-card:hover .chaines {
    max-height: 250px;
}

.theme2 {
    position: relative;
    width: fit-content;
    left: 50%;
    transform: translateX(-50%);
    background:#4A4A4A ;
    padding: 10px;
    border-radius:25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

[data-theme="light"] .theme2 {
    background: #f0f0f0;
    border: 1px solid #ddd;
}

.theme2 ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 2;
    gap: 2px;
}

.theme2 li {
    list-style: none;
    flex: 0 0 calc(50% - 10px);
    display: flex;
    justify-content: center;
}

.stat-card:hover .theme2 {
    max-height: 250px;
}

.date {
    position: relative;
    width: fit-content;
    left: 50%;
    transform: translateX(-50%);
    background:#4A4A4A ;
    padding: 10px;
    border-radius:25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

[data-theme="light"] .date {
    background: #f0f0f0;
    border: 1px solid #ddd;
}

.date ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 2;
    gap: 2px;
}

.date li {
    list-style: none;
    flex: 0 0 calc(50% - 10px);
    display: flex;
    justify-content: center;
}

.stat-card:hover .date {
    max-height: 250px;
}


.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px #6c1515;
}

.cta-button:hover, .cta-button:focus {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px #F92E2D;
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.project-presentation {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: background 0.3s ease;
}

.project-presentation h2 {
    font-size: 2em;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.project-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.project-content h3 {
    color: var(--accent);
    font-size: 1.5em;
    margin-bottom: 15px;
    text-align: center;
}

.project-content h4 {
    color: var(--text-primary);
    font-size: 1.2em;
    margin-top: 25px;
    margin-bottom: 10px;
}

.project-content p {
    font-size: 1em;
    line-height: 1.6;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.project-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.project-content li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.preview, .overview {
    text-align: center;
}

.preview h2, .overview h2 {
    font-size: 2em;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.stat-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, height 0.3s ease;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    height: 200px;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow);
    height: 400px;
}

.stat-card i {
    font-size: 1.5em;
    color: var(--accent);
}

.stat-card h3 {
    margin: 0;
    font-size: 1.2em;
    color: var(--accent);
    text-align: center;
}

.stat-card p {
    margin: 0;
    font-size: 1.5em;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.credit-card{
    background: var(--bg-card);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    border: 1px solid var(--border);
    display: grid;
    grid-template-columns:repeat(3,1fr);
    justify-content: space-between;
    height: 200px;
}

.credit-link{
    text-decoration: none;
    color:white;
}
[data-theme="light"] .credit-link{
    color: black;
}

.ina{
    width: 20%;
}

.gouv{
    width: 20%;
}

.odu{
    width: 35%;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.chart-container {
    background: var(--bg-card);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border);
    animation: fadeInUp 0.8s ease-out;
    position: relative;
}

.chart-container.full-width {
    grid-column: 1 / -1;
    max-width: 100%;
}

@keyframes fadeInUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.chart-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow);
}

.chart-container h3 {
    margin-top: 0;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5em;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.export-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.export-btn:hover, .export-btn:focus {
    background-color: var(--accent-hover);
    transform: scale(1.05);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

canvas {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.filters {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: background 0.3s ease;
}

.filters h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.filter-btn:hover, .filter-btn:focus, .filter-btn.active {
    background: var(--accent-hover);
    transform: scale(1.05);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

footer {
    text-align: center;
    padding: 20px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    margin-top: 40px;
    transition: background 0.3s ease, color 0.3s ease;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5em;
    transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover, .social-links a:focus {
    color: var(--accent);
    transform: scale(1.2);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 20px;
    }

    header .logo {
        width: 150px;
    }

    nav {
        margin-top: 20px;
    }

    .hero h1 {
        font-size: 2.5em;
        flex-direction: column;
        gap: 10px;
    }

    .hero p {
        font-size: 1.1em;
    }

    main {
        padding: 0 10px;
        gap: 20px;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-container {
        padding: 20px;
    }

    .chart-container h3 {
        font-size: 1.3em;
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 80%;
        margin: 5px 0;
    }

    .export-btn {
        position: static;
        margin-top: 10px;
        align-self: flex-end;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Advanced Features Styles */
.data-table-container {
    margin-top: 30px;
    background: var(--bg-card);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    padding: 20px;
    border: 1px solid var(--border);
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: background-color 0.3s ease;
}

.data-table th:hover {
    background-color: var(--accent-hover);
}

.data-table th.sort-asc::after,
.data-table th.sort-desc::after {
    content: '';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
}

.data-table th.sort-asc::after {
    border-bottom: 5px solid #fff;
}

.data-table th.sort-desc::after {
    border-top: 5px solid #fff;
}

.data-table tbody tr {
    transition: background-color 0.3s ease;
}

.data-table tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.1);
}

.search-container {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid var(--border);
    border-radius: 25px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9em;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.clear-search {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.clear-search:hover {
    background-color: var(--accent-hover);
    transform: scale(1.05);
}

.chart-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.chart-type-toggle {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8em;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.chart-type-toggle:hover,
.chart-type-toggle.active {
    background-color: var(--accent-hover);
    transform: scale(1.05);
}





.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent);
    color: #fff;
    padding: 8px;
    text-decoration: none;
    border-radius: 5px;
    z-index: 1000;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 6px;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border);
    border-top: 5px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    background: #dc3545;
    color: #fff;
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
    display: none;
    animation: slideIn 0.3s ease;
}

.error-message.show {
    display: block;
}

.breadcrumb {
    margin-bottom: 20px;
    font-size: 0.9em;
}

.breadcrumb a {
    color: var(--accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--text-secondary);
}

.settings-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-card);
    border-radius: 15px;
    box-shadow: 0 20px 40px var(--shadow);
    padding: 30px;
    border: 1px solid var(--border);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 10000;
    display: none;
}

.settings-panel.show {
    display: block;
}

.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: none;
}

.settings-overlay.show {
    display: block;
}

.settings-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.settings-close:hover {
    color: var(--accent);
}

.settings-section {
    margin-bottom: 25px;
}

.settings-section h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
    font-size: 1.1em;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.setting-label {
    flex: 1;
}

.setting-control {
    flex: 0 0 auto;
}

.reset-btn {
    background: #dc3545;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
    width: 100%;
    margin-top: 20px;
}

.reset-btn:hover {
    background-color: #c82333;
    transform: scale(1.05);
}

.print-hide {
    display: none;
}

@media print {
    .print-hide {
        display: none !important;
    }

    .print-show {
        display: block !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .chart-container,
    .data-table-container {
        page-break-inside: avoid;
        margin-bottom: 20px;
    }
}

[data-contrast="high"] .data-table th {
    background: #ffff00;
    color: #000000;
}

[data-contrast="high"] .data-table th:hover {
    background: #ffff99;
}

/* Font Size Adjustments */
[data-font-size="small"] {
    font-size: 14px;
}

[data-font-size="medium"] {
    font-size: 16px;
}

[data-font-size="large"] {
    font-size: 18px;
}

[data-font-size="xlarge"] {
    font-size: 20px;
}

/* Pagination Controls */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.pagination-controls button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 100px;
    justify-content: center;
}

.pagination-controls button:hover:not(:disabled),
.pagination-controls button:focus:not(:disabled) {
    background-color: var(--accent-hover);
    transform: scale(1.05);
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.pagination-controls button:disabled {
    background-color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

#page-info {
    font-weight: 500;
    color: var(--text-primary);
}

/* Mobile Enhancements */
@media (max-width: 768px) {
    .accessibility-controls {
        top: 10px;
        right: 10px;
    }

    .accessibility-panel {
        min-width: 200px;
        right: -10px;
    }

    .chart-controls {
        justify-content: center;
    }

    .data-table-container {
        padding: 10px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 10px;
        font-size: 0.8em;
    }

    .settings-panel {
        width: 95%;
        padding: 20px;
    }

    .pagination-controls {
        gap: 10px;
    }

    .pagination-controls button {
        padding: 8px 15px;
        min-width: 80px;
        font-size: 0.9em;
    }
}

footer a {
  color: white;
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
}

footer a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0%;
  height: 2px;
  background-color: #00bcd4;
  transition: width 0.3s ease;
}

footer a:hover {
  color: #00bcd4;
}

footer a:hover::after {
  width: 100%;
}